A hypothetical isotropic antenna is radiating in free-space. At a distance of 100 m from the antenna, the total electric field (E8) is measured to be 5 V/m. Find the (a) power density. (b) power radiated.

Which intermolecular force does not require a permanent dipole? a) dipole-dipole forces b) ion-dipole attractions c) hydrogen bonding d) London dispersion forces

m 2. Given a current I(t) = I charge as a function of time of the charge is Qm. sin(at + ) on a Hertzian dipole antenna, what is the Q(t) on the antenna? Assume the maximum amplitude

A 10 GHz uniform plane wave is propagating in the positive z direction and is incident from free space to a fiberglass (e,= 4.9, Ho, o = 4.9, Mo, the Air Eo. Ho 0) radome as in Figure 4. Fiberglass e=4.9 Poia=0 Figure 4 Air Eo. Po a) Determine the thickness of the radome so that there will be no reflection. b) If the amplitude of the incident electric field 1 = 100 ejot and if we maintain the same physical thickness (in meters) of the fiberglass radome determined in part (a), use a Smith chart to determine the amplitude of the transmitted electric field in the fiberglass when the frequency is decreased by 10%.